Method for producing composite pellet for extrusion molding, and composite pellet for extrusion molding produced by the method
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A composite granule and extrusion molding technology, which is applied in the field of the manufacture of composite granules for extrusion molding and the field of composite granules for extrusion molding produced by the method, and can solve problems such as inability to extrude molding.
Inactive Publication Date: 2013-01-09
WPC CORP
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[0003] In the manufacture of the above-mentioned wood moldings, thermoplastic resin, wood powder and other auxiliary materials are directly put into the barrel of the extruder in the extrusion molding device used to manu
Method used
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Embodiment approach 1
[0263] The production test examples of composite pellets produced by the production method of the present invention and the production test examples of wooden molded articles (boards) using the composite pellets obtained by the production test examples are shown below.
[0264] 1. Manufacture test of composite particles
Embodiment approach 2
[0367] The production examples of the composite pellets of the present invention are described below, and the results of confirmation tests for confirming the feeding performance of the extruder and the performance of the screw entering the extruder are shown using the composite pellets obtained in the production test examples.
manufacture example
[0369] Composition of raw materials
[0370] Composite particles to which 12HOS-M is attached were produced using raw materials having compositions shown in Table 6 below.
[0371] [Table 6]
[0372] Composition of composite particles (before attaching 12HOS-M)
[0373] Element
Manufacturer and specifications, etc.
Mixing ratio (mass%)
PP
(Co., Ltd.) Prime Polymer "P102" homopolymer MI=1
19.92
PP
Sun Aroma Co., Ltd. "EM500A" homopolymer MI=3
9.96
Bottle Cap Recycling Granules
Dafeng Chemical Industry (PP / PE=7 / 3)
9.96
wood powder
Average particle size 150μm
44.92
Talc powder
Fuji Tarku Co., Ltd. average particle size 50μm
10.17
Strengthening agent (maleic acid modified PP)
Sanyo Chemical "ユ一メツス1010"
0.42
paint
Nikhiro Bitsukusu "PO-ET2782C"
2.54
Paraffin
Mitsui Hiwatsukusu "HW200P"
2.12
total
100.0
[...
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PUM
Property
Measurement
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Abstract
Disclosed are composite pellets for extrusion molding wherein fusion does not occur between the pellets, and there is no variation in size and density. A molten material obtained by an extruder for a raw material containing a thermoplastic resin and wood powder is extruded into a strand shape through a die nozzle of the extruder, and cut into a predetermined length to form a pellet. At this time, the extrusion amount, the diameter of each nozzle hole, and the number of nozzle holes are adjusted so that the linear velocity (vd) of the molten material in each nozzle hole of the die nozzle is in the range of 12 to 50 cm/sec. Further, regardless of the variations in particle diameter, etc., a stable amount of the composite pellets are supplied to the extruder, and smoothly introduced to a screw of the extruder. The composite pellets and 12-hydroxystearic acid containing a metal of Ca, Mg, or Zn are agitated together, and 0.03 to 0.4 mass% of the 12-hydroxystearic acid is attached to the periphery of 100 mass% of the composite pellet, and the pellets are used for extrusion molding.
Description
technical field [0001] The present invention relates to a method for producing composite pellets used in extrusion molding of wood moldings obtained by molding a thermoplastic resin containing a large amount of wood powder, and composite pellets produced by the method, the composite pellets being produced by The thermoplastic resin, wood powder and other auxiliary materials that are required for the molding of wood moldings are melted and kneaded in advance so that the materials are compounded and pelletized (in this specification, the described The particles obtained by compounding multiple raw materials are called composite particles), and the present invention also relates to a method for manufacturing composite particles for extrusion molding that are particularly suitable for extrusion foam molding in the aforementioned extrusion molding and the composite particles manufactured by the method. Composite pellets for extrusion molding, and relate to composite pellets for ext...
Claims
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Application Information
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